Watchmaker&#39;s hand vise



Dec. 20, 1927.

0. A. BETTUM WATCHMAKERS HAND VISE Filed Feb. 28. 19:27

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Patented Dec. 20,1927.

osonn n.faanrclfnlil:onAimsnune'mornl -nrs'rme'rl or2 COLUMBLA.

WATCHMAimRs HAND fvrsn;

"Thislginvention is Lin the'nature of a. Vh and .yise *'for holding small articles to permit a "Workman to make repairs thereon, and isln n g Yable ,connection 5. The forward end ofthe -shank 3' projects.atthe'front'end ofthe oas- ,niga jeets; atgthe rear end of the easing and-`is I: particularly designed 'for E'use L as a -wvatelr 5 makers Worlz' holder.

.Ibis ani-mportant object 'ofztlie' present f v1invention'to'enablethe convenient and elli- "eientmanipnl'ation ofthe toolib'y one hand towopen and close"the'movab-lejaw ofthe `ifise,`` and",therebyl leave/the other" handy free "forgpla'eing the' work `piece `upon "l the "tool y "-8, andthe shankis preferably solid from 'and removing "the samefthere/from.`

TEA 'furtgher object y of ythe invention is :to

LZWithin"the shankis arod Shaving an-iel ybow or lateral extension 10i katits rearend Vwhich is Areceived through aslo't 11?- vin'fthe *rear'e'nd ofthe tubular `shank 3, "with-,the .outer extremity of the projection received in e enable "tv-hef convenient assemblage and separation of'the'parts .ofthe tool so.' as toA enfa-ble 'the ready krepair.of the tool in the eventk of Wear or breakage 'ofuany ,of itsfparts.

` Withthese and other objeets'in viewgfthe y present invent-ion eonsistszin..` the' combina` 201 .tion andgarrangement` ofjrparts'as yWillibe hereinafter more'` flly ,deseribedf illustrated in the accompanying I drawings and partien-l llarly pointed out in theappended Claims, it i of.course.b'eingnnderstoodithat ohanges in v tails. ,may be made, Within the scopejoyf the .olaimls,witl1out `departi,nge fromy the. spirit v`or sacrificing.v any of -the 4a'dvant,age's of the'kfinvention; n f

'.Inthedrawings: v o, o,

VVliigure lis La llongitudinal `1st-zetional yiew of a Watclmiakers tool embodying"the*fea-v tures of vthe-present invention; M

ljFigure Qfyis4 an enlargedfdetail sectional *jan'dengages atr one-'end the'elbow or-pro ject-ionfl() asa stoppvhile its opposite; end 'constitutes `an abutment `or shoulder for en- I view Figure Brisa view similar toFigurefQ` and o showing a balance li'vheel held bythet'ool;

Figure 4. is ay detail perspective "View of the finovable jaw leler'nent of the tool;

vFigure (Slis a detail 7elevation i fof fthe -"de-,

taeh'able Ypropping member. Figure?" s a View similar tol'Figure vvji'th gthefjaws,separated. and'ftheir .coactingjfeees' n o l o held between *thefrst'andsecond fingers of f one hand,t andthe Vthumb5 `of! the samelhand, Y is pressed against the head 6nto; thrustft-he disposed oblique' to` thev longitudina'l"v axis of theme01. i

The present toolfinolndes a `tubularfopen kport-ion is externally smooth," While the Icylindricaljportionfof the oasing'sjlnurlemas g g i and jthen thekjpressnreofxthethinnb onftlie' 'heed 6 is releasedzand thejlspring ie permit-y l.best shoyvnin" Figure oflthe drawing. Mounted forY endwisej reeiproeation with;

the form, l,proportion, size e and minor ide#A "Figure 5fis a side elevation showing' fthe] ended casing l l, which m ay be externally ftaf "pered at its `iront endlxas `at2. 'Thel'tap'ered and `stern 'having screW-threzided detach- While f the rear end; of the stem fllprol provided rwith an enlarged lieadl outside of so as; to" form an Y` abutment, shoulder or jaw the jaw. 8f `to the forward end of shank.

ahole orjreoess 12 provided'ing'the easing wherebythe `rodi19 -is -anchored or -held against independent; longitudfinil-.movement fwithinzthe casing. Vlhenod` 9is of ra. length l to have Sits; `forward end f normally engage ythe jaw 8 ofithefshnnk, and said-forward *endjoffthe rod constitutesthe liX'e'd-jaw of ythe-vise.

*The jaws are normally and yieldablyf held yin mutual engagement by means of ahelioal spring "13 lying Within the casing# and i elnbracingtheredueed portion 14e` ofthe stem7 said reduced stemport/ion providing afshonl- "der," or vabutment 15 against -Which 'the' rear end of the spring engages. bushing 16 embraces the slottedrear end of theashank 3 i gagement by the forward end ofthespring.y Thelspring 1s an expanslon sprmg'normalflyf operating tof hold the-shank and stem reltracted-withthefmovable*and fixed jaivslin engagementand the head G'epaeed inrearof,

thefcasing." Thebushing is emp-loyedzto'give 'jejmolersbstantial bearingforr'thefforward f endof' the spring.y

"In using? the 'present tool, the casing is plunger forwardfand separatethe jaws of the* device after kvwhich the Work. "piecerf as for instance a balanee Wheel'l'?, is :takeniu 'the other hand 'and 4placed' between 'the eine,

ino

ted to move the plunger rearwardly thereby to grip the work piece betweenthe jaws, as shown in Figure 3 of the drawings. By pressing upon the head 6, the jaws may be separated and the work piece released. "lhe jaws are clamped upon the work piece by the action of the spring leaving the handk free to hold the tool in any desired position.

For supporting the `tool inthe manner shown in Figure` 5, a `prop member 18 may be employed. This prop member is lin the form of a plate having a hole or opening 19 to receive the taperedV` forward end of the plunger, and has a straight bottoni edge to rest upon a table, work-bench 'or other support, with the rear end of the tool also resting. upon the same support, thereby to rigidly support the work piece in position to enable the repair man to work upon the article to be repaired. Of course, the prop 18 is removable in order that the tool may be employed under conditions where the prop mightinterfere, and it will be understoodthat the prop is not essential to the holding function of the tool. The tapered shape of the forward end of theplunger enables the wedging thereof within the opening 19 of the prop so as to obtain a simple and effective rigid connection vbetween the yprop iand the tool, while the prop may beV conveniently removed without disturbing any parts of the tool or requiring loosening` or removal of any fastenings.`

The ,tool may be employed in a vertical position with the forward end of theshank 3 resting upon a table, work bench or` other support. y w

In some instances it may be desirable to have the work piece disposed obliquely with respect to the longitudinal axis of the tool, and to provide for this disposition ofV the work piece, see Figure 7, the .movable jaw 8 and the `fixed jaw formed by the forward end of the rod 9 are disposed inparallelism obliquely with respect to the longitudinal axis of the tool and inclined forwardly and outwardly. .n l

lWhat 1 claim` is:

1. A tool comprising an open ended tubular casing, a plunger working in the casing and projecting at opposite ends thereof, a spring forcing the plunger rearwardly, the

forward portion of the `plunger being tubular and having a notch therein and also pro* vided with a slot, and a rod lying vin the tubular portion of the plungerv and lia-ving a lateral projection extending through the slot in the plunger and anchored to the casing, the `front end of the rod and the front j wall of the notch in the plunger cooperating as vise jaws.` l j 2. A tool comprising an open ended tu bular casing, a plunger working in the casing and projecting at opposite ends thereof, the forward portion of the plunger consistthe shoulder on the stem, the oppositeend i of the spring being fixed, the tubular shank having a 'notch therein in front of the casing,

`and a rod lying in the tubular shank and fixed to the casing, the front wall ofthe .notch and the front end of the rod constituting `co-acting vise jaws.

3. A tool comprising` an openended tubular easing, the rear portion of thel bore of the casing being enlarged and providing an internal annular shoulder, a tubular shank working endwise in the casing and having a working fit within the forward portion thereofpthe front portion of the shank projecting beyond the casing and provided with a transverse notch, Vthe rear portion of the shank having a longitudinal slot and also internally screw-threaded, a rod lying within the tubular shank and havinr a transverse projection extending through the slot ofthe shank and secured to thel casing, the front wall Vof the notch and the front end of the rod constituting co-acting vise jaws, a bushing embracing the inner end i tachably engaged with the screw-threads on the tubular shank, anda helical spring embracing the reduced portion ofthe stem and bearing at one end against the shoulder on the steml and at itsopposite end against the bushing.

el. A tool of thecharacter described comprising a tubular casing, a plunger working in the casing and projecting at opposite ends thereof, aV spring forcing the plunger rearwardly, the forward portion of the plunger being tubular and having a notch therein and` also provicledwith a longitudinal slot, and a rod lying in the tubular portion of the plunger and having a lateral `projection extending through the slot in the plunger and anchored to the casing, the front end of the rod and the front wall of thev notch in the plunger being disposed obliquely with respect tol the longitudinal axis of the plunger and cooperating as vise jaws.

5. A tool comprising an open 'ended tubular casing, a plunger working in the casing and projectingat opposite ends thereof, a spring forcing the plunger rearwardly, the forward portion `of the plunger being tu-` bular and having a notch therein and also provided witha slot, and a rod lying in the tubular portion of the plunger and anchored against endwise'inovement, the `front portion ofthe rod and they front wail of the notch in the plunger eooperting as vise jaws.

6. A tool comprising an open ended tubuj 1er casing, a plungerworking in the casing and projecting at opposite ends thereof, a spring forcing the plunger rearwardly, the

forward portion of the plunger being tubu? lar and having a notch therein and also pro- `vided. with a slot, anda rod lying in the tu- 10' of the rod and the front Wall of the notch 15 in the plungeroooperating as vise j aWs. Y

j 1 "osoAR A. BETTUM. 

